var curPage =1;
var nP;
YAHOO.util.Event.addListener(window,'load',function(e){setupPage();})

Event.observe(window,'load',function() { 
	
	
	});
function setupScroll()
{

if ($('scroll1') != null)
	{
		var nh = (YAHOO.util.Dom.getY('cleardiv')-YAHOO.util.Dom.getY('scroll1'))-20;
		if (nh > 0)
		{
		var newHeight = nh + 'px';
	
		YAHOO.util.Dom.setStyle('scroll1','height',nh+'px');
		
		var st = nh + (YAHOO.util.Dom.getY('scroll1'))-20;
		YAHOO.util.Dom.setY('scrollnav',st,false);
		}
	}
}
function setupPage()
{
	numPages = $('content').getElementsByTagName('div').length;
	if (numPages > 1) // multi-page view
	{
		nP = numPages-1;
		if ($('totalpages')!=null)
		{
		Element.update('totalpages',nP);
		YAHOO.util.Event.addListener('lnav','click',function(e){prevPage();});
		YAHOO.util.Event.addListener('rnav','click',function(e){nextPage();});
		showNav();
		}
	}
	
	setupScroll();
	
}

function prevPage()
{

	if (curPage == 1)
	{
	}
	else
	{
	$('page'+curPage).className = 'page hidden';
	curPage--;
	$('page'+curPage).className = 'page';
	Element.update('curpagenum',curPage);
	}
	showNav();
}
function nextPage()
{
	if (curPage == nP)
	{
	}
	else
	{
	$('page'+curPage).className = 'page hidden';
	curPage++;
	$('page'+curPage).className = 'page';
	Element.update('curpagenum',curPage);
	}
	showNav();
}
function showNav()
{
	if(curPage == nP)
	{
		$('rnav').className = 'hide';
	}
	else
	{
		$('rnav').className = '';
	}
	
	if (curPage == 1)
	{
		$('lnav').className = 'hide';
	}
	else
	{
		$('lnav').className = '';
	}
}